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Cristallisation par onde acoustique : le cas de l'héliumCrystallization by acoustic waves: the case of helium |
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| Authors: | Martine Ben Amar Michael P Brenner James R Rice |
| Institution: | 1. Laboratoire de physique statistique, École normale supérieure, 24, rue Lhomond, 75231 Paris cedex 05, France;2. Division of Engineering and Applied Sciences and Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, États-Unis |
| Abstract: | We establish a theoretical model to explain the nucleation of a crystal of helium by an acoustic over-pressure. We explain the interfacial laws for this ultra-fast cristallization, close to the sound speed. Assuming spherical symmetry and taking into account the experimental data, we recover the dynamics of the growth and melting during an over-pressure impulse. To cite this article: M. Ben Amar et al., C. R. Mecanique 331 (2003). |
| Keywords: | Ondes Acoustique Vibrations Lois interfaciales Cristallisation Nucléation Hélium solide Cavitation Acoustics Waves Vibrations Interfacial laws Crystallization Nucleation Solid helium Cavitation |
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